CA2563029A1 - Method 0f uplink preemption by users in a trunking group - Google Patents

Method 0f uplink preemption by users in a trunking group Download PDF

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Publication number
CA2563029A1
CA2563029A1 CA002563029A CA2563029A CA2563029A1 CA 2563029 A1 CA2563029 A1 CA 2563029A1 CA 002563029 A CA002563029 A CA 002563029A CA 2563029 A CA2563029 A CA 2563029A CA 2563029 A1 CA2563029 A1 CA 2563029A1
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CA
Canada
Prior art keywords
trunking
uplink
group
access message
user
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002563029A
Other languages
French (fr)
Other versions
CA2563029C (en
Inventor
De Chen
Jinneng Cheng
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co., Ltd.
De Chen
Jinneng Cheng
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co., Ltd., De Chen, Jinneng Cheng filed Critical Huawei Technologies Co., Ltd.
Publication of CA2563029A1 publication Critical patent/CA2563029A1/en
Application granted granted Critical
Publication of CA2563029C publication Critical patent/CA2563029C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H04W4/10—Push-to-Talk [PTT] or Push-On-Call services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/40—Connection management for selective distribution or broadcast
    • H04W76/45—Connection management for selective distribution or broadcast for Push-to-Talk [PTT] or Push-to-Talk over cellular [PoC] services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/30—Resource management for broadcast services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/08—Trunked mobile radio systems

Abstract

The present invention discloses a method of uplink preemption for users in the trunking group, wherein a group call uplink channel and a group call downlink channel are allocated for the group call trunking group by a network-side trunking system when a group call of the trunking group is set up, different priorities are set for different users in the trunking group, and a dedicated uplink channel is allocated for a speaker in the trunking group to speak, the method comprises: receiving, by the network-side trunking system, an UPLINK ACCESS message which is initiated by a group call user desiring to speak and is sent on the allocated group call uplink channel;
allocating, by the network-side trunking system, a free uplink channel to the user who initiates the UPLINK ACCESS message as the user's dedicated uplink channel;
releasing, by the network-side trunking system, the dedicated channel allocated for the speaker, and taking, by the network-side trunking system, the speaker as a listener listening on the group call downlink channel allocated for the trunking group;
wherein the user who initiates the UPLINK ACCESS message speaks on the dedicated channel as the current speaker.

Claims (8)

1. A method of uplink preemption by users in a trunking group. group call channel uplink and downlink being allocated for the trunking group by trunking system network side when a group call of the trunking group was set up, wherein, allocating a dedicated channel for a speaker in the trunking group to speak, further comprising:
When desiring to speak, a user initiating an UPLINK ACCESS message to the trunking system network side on the allocated group call channel uplink;
the trunking system network side which received the UPLINK ACCESS
message allocating a free uplink channel to the user who initiates the UPLINK
ACCESS message as his dedicated channel;
the trunking system network side which received the UPLINK ACCESS
message releasing the dedicated channel allocated for the speaker, and taking the speaker as a listener listening to the group call channel downlink allocated for the trunking group;
the user who initiates the UPLINK ACCESS message speaking on the allocated dedicated channel as the current speaker.
2. The method according to claim 1, further comprising:
after receiving the UPLINK ACCESS message, the trunking system network side responding to the message;
before the trunking system network side allocating a free uplink channel to the user who initiates the UPLINK ACCESS message, the method further comprising:
the user who initiates the UPLINK ACCESS message sending a layer 3 TALKER INDICATION message to the trunking system network side.
3. The method according to claim 1, wherein different priorities are set for different users in the trunking group, further comprising: the trunking system network side broadcasting the UPLINK BUSY message that carries the highest priority of the trunking group.
4. The method according to claim 1, different priorities are set for the users in the trunking group respectively, before the user initiating the UPLINK ACCESS
message to the trunking system network side, the method further comprising:
the user who initiates the UPLINK ACCESS message in the trunking group determining if its configured priority is higher than that of the current speaker, if yes, executing the subsequent steps; otherwise, the user can not initiate an ACCESS
message, ending the procedure.
5. The method according to claim 1, different priorities are set for the users in the trunking group respectively, the UPLINK ACCESS message carrying the initiating user's priority in it;
the trunking system networks side that received the UPLINK ACCESS message determining if the priority of the initiating user is higher than that of the current speaker, if yes, executing the subsequent steps; otherwise, nothing is done by the trunking system network side, ending the procedure.
6. The method according to claim 1, wherein, the procedure of allocating dedicated channel for the speaker in the trunking group to speak comprises the following steps:
the speaker initiating an UPLINK ACCESS message on the allocated group call channel uplink to the trunking system network side;
the trunking system network side allocating a free uplink channel for the speaker as a dedicated channel to speak.
7. The method according to claim 3, wherein the UPLINK BUSY message is broadcast on the group call channel.
8. The method according to claim 1, wherein the procedure of allocating dedicated channel for the speaker in the trunking group is executed during the process of access or uplink preemption.
CA2563029A 2004-04-02 2005-03-31 Method 0f uplink preemption by users in a trunking group Active CA2563029C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN200410031674.4 2004-04-02
CNB2004100316744A CN1297163C (en) 2004-04-02 2004-04-02 Higher-priority user upstream seizing method
PCT/CN2005/000426 WO2005096645A1 (en) 2004-04-02 2005-03-31 A method for user uplink preempting in the trunked group

Publications (2)

Publication Number Publication Date
CA2563029A1 true CA2563029A1 (en) 2005-10-13
CA2563029C CA2563029C (en) 2012-06-26

Family

ID=35050354

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2563029A Active CA2563029C (en) 2004-04-02 2005-03-31 Method 0f uplink preemption by users in a trunking group

Country Status (5)

Country Link
US (1) US20070060182A1 (en)
EP (1) EP1715700A4 (en)
CN (1) CN1297163C (en)
CA (1) CA2563029C (en)
WO (1) WO2005096645A1 (en)

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CN100442869C (en) * 2005-04-18 2008-12-10 华为技术有限公司 Method for uplink rob of user getting in cluster group latterly
CN101047903B (en) * 2006-03-29 2010-07-07 华为技术有限公司 Uplink group call channel preempting method and system
CN100456855C (en) * 2006-06-08 2009-01-28 华为技术有限公司 Method for ending group calling speech
CN101127963B (en) * 2006-08-18 2011-06-01 华为技术有限公司 A method for terminating group call
CN100563386C (en) * 2007-01-31 2009-11-25 华为技术有限公司 A kind of method of granting terminal speak right and press-and-talk server
CN101296521B (en) * 2008-06-20 2011-08-10 华为技术有限公司 Method, device and system for guaranteeing communication
FR2977753B1 (en) 2011-07-06 2013-09-27 Cassidian ASYMMETRIC COMMUNICATION FREQUENCY CHANNEL MANAGEMENT IN A RADIOCOMMUNICATION SYSTEM
DE102011088796A1 (en) * 2011-10-28 2013-05-02 Rohde & Schwarz Gmbh & Co. Kg Radio communication device, radio communication system and method for radio communication with group communication
WO2013100771A1 (en) * 2011-12-30 2013-07-04 Motorola Solutions, Inc Frequency allocation for preemption calls in a trunked radio communication system
GB201320667D0 (en) * 2013-11-22 2014-01-08 Microsoft Corp Resource allocation
JP2016208086A (en) * 2015-04-15 2016-12-08 株式会社東芝 Control device and control method
CN106304378A (en) * 2015-06-04 2017-01-04 中兴通讯股份有限公司 Group calling method in a kind of trunked communication system and device
US10973007B2 (en) * 2018-03-30 2021-04-06 Comcast Cable Communications, Llc Wireless communications for uplink preemption and downlink preemption

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US5274837A (en) * 1987-06-03 1993-12-28 Ericsson Ge Mobile Communications Inc. Trunked radio repeater system with multigroup calling feature
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FI95428C (en) * 1993-08-12 1996-01-25 Nokia Telecommunications Oy Method, radiotelephone exchange and subscriber station of a radiotelephone system for establishing a high-priority call or a high-priority group call
US6295284B1 (en) * 1998-12-23 2001-09-25 Qualcomm. Inc. Method and apparatus for providing fair access in a group communication system
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BR0108899A (en) * 2000-03-03 2005-10-18 Qualcomm Inc Method and apparatus for participating in group communication services in an existing communication system
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Also Published As

Publication number Publication date
WO2005096645A1 (en) 2005-10-13
EP1715700A1 (en) 2006-10-25
CN1678095A (en) 2005-10-05
CN1297163C (en) 2007-01-24
WO2005096645A8 (en) 2005-12-22
CA2563029C (en) 2012-06-26
EP1715700A4 (en) 2007-04-11
US20070060182A1 (en) 2007-03-15

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